An airplane whose rest length is 40.0 m is moving at uniform velocity with respect to Earth,

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An airplane whose rest length is 40.0 m is moving at uniform velocity with respect to Earth, at a speed of 630 m/s.

(a) By what fraction of its rest length is it shortened to an observer on Earth?

(b) How long would it take, according to Earth clocks, for the airplane's clock to fall behind by 1.00μs? (Use special relativity in your calculations.)

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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